Cheap Flights From Ronald Reagan Washington National (DCA) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from Washington (DCA) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $286 round trip and CA $155 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Jan 17 - Thu, Jan 22
DCA
Washington
SEA
Seattle
CA $286 Roundtrip, found 19 hours ago
CA $286
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Sat, Jan 17 from Washington to Seattle, returning Thu, Jan 22, priced at CA $286 found 19 hours ago
Fri, Jan 23 - Tue, Jan 27
DCA
Washington
SEA
Seattle
CA $307 Roundtrip, found 2 days ago
CA $307
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Jan 23 from Washington to Seattle, returning Tue, Jan 27, priced at CA $307 found 2 days ago
Sun, Jan 18 - Thu, Jan 22
DCA
Washington
SEA
Seattle
CA $313 Roundtrip, found 19 hours ago
CA $313
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Sun, Jan 18 from Washington to Seattle, returning Thu, Jan 22, priced at CA $313 found 19 hours ago
Fri, Jan 23 - Tue, Jan 27
DCA
Washington
SEA
Seattle
CA $315 Roundtrip, found 2 days ago
CA $315
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Jan 23 from Washington to Seattle, returning Tue, Jan 27, priced at CA $315 found 2 days ago
Fri, Jan 23 - Tue, Jan 27
DCA
Washington
SEA
Seattle
CA $322 Roundtrip, found 2 days ago
CA $322
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Jan 23 from Washington to Seattle, returning Tue, Jan 27, priced at CA $322 found 2 days ago
Sat, Jan 17 - Thu, Jan 22
DCA
Washington
SEA
Seattle
CA $323 Roundtrip, found 19 hours ago
CA $323
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Sat, Jan 17 from Washington to Seattle, returning Thu, Jan 22, priced at CA $323 found 19 hours ago
Sun, Jan 18 - Thu, Jan 22
DCA
Washington
SEA
Seattle
CA $328 Roundtrip, found 19 hours ago
CA $328
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Sun, Jan 18 from Washington to Seattle, returning Thu, Jan 22, priced at CA $328 found 19 hours ago
Sun, Jan 18 - Thu, Jan 22
DCA
Washington
SEA
Seattle
CA $344 Roundtrip, found 19 hours ago
CA $344
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Sun, Jan 18 from Washington to Seattle, returning Thu, Jan 22, priced at CA $344 found 19 hours ago
Fri, Jan 23 - Tue, Jan 27
DCA
Washington
SEA
Seattle
CA $357 Roundtrip, found 2 days ago
CA $357
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Jan 23 from Washington to Seattle, returning Tue, Jan 27, priced at CA $357 found 2 days ago
Fri, Jan 23 - Tue, Jan 27
DCA
Washington
SEA
Seattle
CA $362 Roundtrip, found 2 days ago
CA $362
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Jan 23 from Washington to Seattle, returning Tue, Jan 27, priced at CA $362 found 2 days ago

Frequently asked questions

Are there direct flights from Ronald Reagan Washington National Airport (DCA) to Sea-Tac Airport?
Wander wisely and get your hands on a direct flight from National Airport to SEA with Alaska Airlines. This carrier is the ideal choice if you'd rather get to Seattle as fast as you can.
What airlines fly from National Airport to Sea-Tac Airport?
Many seasoned wanderers choose to take to the skies with Alaska Airlines (AS) from Arlington to Seattle. This reputable air carrier not only offers as many as 60 flights per month, it also has direct services.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.